1244457484 has 24 divisors (see below), whose sum is σ = 2195424000. Its totient is φ = 617214720.

The previous prime is 1244457463. The next prime is 1244457503. The reversal of 1244457484 is 4847544421.

It is a super-2 number, since 2×1244457484² = 3097348858967220512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1244457484.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256917 + ... + 261715.

It is an arithmetic number, because the mean of its divisors is an integer number (91476000).

Almost surely, 2^1244457484 is an apocalyptic number.

It is an amenable number.

1244457484 is a deficient number, since it is larger than the sum of its proper divisors (950966516).

1244457484 is a wasteful number, since it uses less digits than its factorization.

1244457484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313 (or 5311 counting only the distinct ones).

The product of its digits is 573440, while the sum is 43.

The square root of 1244457484 is about 35276.8689653716. The cubic root of 1244457484 is about 1075.6228541924.

The spelling of 1244457484 in words is "one billion, two hundred forty-four million, four hundred fifty-seven thousand, four hundred eighty-four".